Solved: Large amounts of nitrogen gas are used in the

Chapter 6, Problem 120AE

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Problem 120AE

Large amounts of nitrogen gas are used in the manufacture of ammonia, principally for use in fertilizers. Suppose 120.00 kg of N2(g) is stored in a 1100.0-L metal cylinder at 280 °C. (a) Calculate the pressure of the gas, assuming idealgas behavior. (b) By using the data in Table calculate the pressure of the gas according to the van der Waals equation. (c) Under the conditions of this problem, which correction dominates, the one for finite volume of gas molecules or the one for attractive interactions?

Table Van der Waals Constants for Gas Molecules

Substance

a(L2@atm/mol2)

b(L/mol)

He

0.0341

0.02370

Ne

0.211

0.0171

Ar

1.34

0.0322

Kr

2.32

0.0398

Xe

4.19

0.0510

H2

0.244

0.0266

N2

1.39

0.0391

O2

1.36

0.0318

F2

1.06

0.0290

Cl2

 6.49

0.0562

H2O

5.46

0.0305

NH3

4.17

0.0371

CH4

2.25

0.0428

CO2

3.59

0.0427

CCl4

20.4

0.1383

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